Atic Atac: Routine at 9DA0

9DA0: Drawing mode 3: furniture's colours mirrored across the bottom-left to top-right diagonal

Entry 3 of COLOUR_DRAWERS. It fetches through FETCH_SPRITE_ATTRS, then copies row by row with the combining instruction patched in by SPRITE_COMBINE_OPCODE, the same as every other routine in the two tables.
COLOURS_FLIP_ANTIDIAGONAL	9DA0	POP BC
	9DA1	CALL FETCH_SPRITE_ATTRS
	9DA4	LD A,B
	9DA5	EXX
	9DA6	LD B,A
	9DA7	EXX
COLOURS_FLIP_ANTIDIAGONAL_0	9DA8	PUSH BC
	9DA9	PUSH DE
	9DAA	PUSH HL
COLOURS_FLIP_ANTIDIAGONAL_1	9DAB	LD A,(DE)
	9DAC	AND A
	9DAD	JR Z,COLOURS_FLIP_ANTIDIAGONAL_3
	9DAF	CP $FF
	9DB1	JR NZ,COLOURS_FLIP_ANTIDIAGONAL_2
	9DB3	LD A,($5E1A)
COLOURS_FLIP_ANTIDIAGONAL_2	9DB6	LD (HL),A
COLOURS_FLIP_ANTIDIAGONAL_3	9DB7	CALL NEXT_SPRITE_ROW
	9DBA	INC L
	9DBB	DEC C
	9DBC	JR NZ,COLOURS_FLIP_ANTIDIAGONAL_1
	9DBE	POP HL
	9DBF	LD BC,$0020
	9DC2	AND A
	9DC3	SBC HL,BC
	9DC5	POP DE
	9DC6	POP BC
	9DC7	INC DE
	9DC8	EXX
	9DC9	DEC B
	9DCA	EXX
	9DCB	JR NZ,COLOURS_FLIP_ANTIDIAGONAL_0
	9DCD	RET